US 11,928,829 B2
Information processing device, information processing method, and recording medium recorded with information processing program preliminary class
Hirotaka Sakamoto, Kaisei-machi (JP); Masao Yano, Shizuoka-ken (JP); and Tetsuya Shoji, Susono (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Sep. 21, 2021, as Appl. No. 17/480,390.
Claims priority of application No. 2020-161482 (JP), filed on Sep. 25, 2020.
Prior Publication US 2022/0101543 A1, Mar. 31, 2022
Int. Cl. G06T 7/37 (2017.01); G06F 18/23 (2023.01)
CPC G06T 7/37 (2017.01) [G06F 18/23 (2023.01); G06T 2207/10056 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An information processing device comprising:
a memory; and
a processor coupled to the memory, the processor being configured to:
acquire an image captured by a transmission electron microscope;
for each partial region in the image, execute a two-dimensional Fourier transform on an image of the partial region;
based on results obtained by executing the two-dimensional Fourier transform on each of the partial regions, perform clustering of frequency strengths obtained from the results of the two-dimensional Fourier transform; and
determine regions of different crystallinity in the image, based on results of the clustering, wherein:
in a case of executing the two-dimensional Fourier transform, the processor is configured to execute the two-dimensional Fourier transform on each of the partial regions, each of the partial regions representing an image within a predetermined range centered on a center pixel; and
in a case of determining the regions of different crystallinity in the image, the processor is further configured to determine whether or not each of the partial regions is a region of high crystallinity by determining whether or not the center pixel of each of the partial regions is a high crystallinity pixel from results of the clustering based on results of the two-dimensional Fourier transform calculated for each of the partial regions.